India, March 12 -- An explosive new memoir has made shocking claims about Sheryl Sandberg's time at Facebook - including the fact that she told one of her subordinates to "come to bed" on a private flight, and once spent $13,000 on lingerie during a trip to Europe.

Sarah Wynn-Williams, a former Facebook employee, made these claims in her book Careless People: A Cautionary Tale of Power, Greed, and Lost Idealism, as reported by The New York Post.

Sarah Wynn-Williams, who spent seven years working at Facebook, claims that the company's then-COO Sheryl Sandberg once took a long drive through Europe. During the drive, Sandberg and her then-26-year-old assistant named "Sadie" stroked each other's hair and took turns sleeping in each other's ...